Spring-hinge.



E. C. BILLINGS.

SPRING HINGE.

APPLICATION FILED JULY 19, 1912.

1 56,731. j Patented Mar.18,1913.

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ERASTUS C. BILLINGS, OF GREENFIELD, MASSACHUSETTS.

SPRING-HINGE.

Specification of Letters Patent.

Application filed July 19, 1912. Serial No. 710,449.

To all whom it may concern:

Be it known that I, ERASTUS C. BILLINGS, a citizen of the United States, residing at Greenfield, in the county of Franklin and State of Massachusetts, have invented new and useful Improvements in Spring-Hinges, of which the following is a specification.

The invention relates to hinges, and more particularly to the class of spring hinges for use on window blinds.

The primary object of the invention is the provision of a hinge of this character wherein the blind will be held against swinging movement when closed or at 90 degrees each side of closed position, thereby preventing the opening of the blind when closed or the closing of the same when open thereby obviating the possibility of the breaking of the hinge resulting from the blind slamming from the force of high winds.

Another object of the invention is the provision of a hinge of this character in which the blind may be swung to opened or closed position and sustained in such positions against the pressure of the wind when directed against the same.

A further object of the invention is the provision of a hinge of this character which is simple in construction, strong, durable, thoroughly reliable and efficient in its purpose, and inexpensive in manufacture.

Withthese and other objects in view the invention consists in the construction, com bination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claim hereunto appended.

In the drawings: Figure 1 is a fragmentary sectional view thorugh a window frame and blind showing the hinge constructed in accordance with the invention connecting the blind to the frame, the blind being shown partly open. Fig. 2 is a transverse horizontal sectional View through the hinge. Fig. 3 is a perspective view of the slidable stem of the hinge. Fig. 1 is the swinging pintle detached. Fig. 5 is a perspective view of one of the sections of the hinge.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings by numerals the hinge comprises a housing 5 having a central bore 6, opening through its inner end, while its opposite outer closed end? is provided with an elongated substantially rectangular-shaped slot 8, in which is slidably mounted a correspondingly shaped stem 9 for supporting the pintle of the hinge. The stem 9 at its inner end is fastened to a washer l0 loosely fitted in the bore 6 in the housing 5, and against which works one end of a coiled expansion spring 11, the opposite end of which works against the closed outer end 7 of the said housing so as to normally sustain the said stem 9 retracted within the housing.

Formed on the outer end of the stem 9 is a segmental shaped head 12, the same working against awasher 13 interposed between it and the outer closed end 7 of the housing 5 and upon this head 12 is mounted a swinging pintle comprising a fork end 14 straddling the head 12 and at right angles to a squared pintle end 15, the forked end 1 1 being connected to the head 12 by means of a pivot pin 16, whereby the said pintle may readily swing in an arc thereon.

The housing 5 is formed with ears 17 outturned therefrom and through which are passed suitable fasteners for connecting it to the window frame 18. while secured to the blind 19 is a plate 20. the same being formed with a hanger ear21 provided with a squared opening 22 in which is received the correspondingly shaped pintle end 15. thereby connecting the blind 19 for swinging movement, the pintle turning upon the pivot 16.

Formed on the bifurcated end 14 of the pintle are laterally out-turned stop lugs 23 which are desiened to engage against the outer face of the washer 13. so as to hold the said bl nd either closed. or at 90 degrees at each side of clo ed n sition. The p ate 20 is secured to the blind 19 in any suitable manner. The nlate 17 is connected to the casing of the window on the face against which the sash bears. so that the blind mav swing to the positions hereinbefore described.

From theforeo'oing description. taken in connection with the ac'companving drawings. it is thought that t e construction and operation of the invention will be clearlv understood, and therefore. a more extended exp anation has been omitted.

What is claimed is t A hinge comprising a housing adapted to be secured to a window frame, a stem slidablv mounted in said housing, a pintle swingingly connected to the outer end of said stem and adapted for connection with a blind, resilient means acting upon the stem Patented Mar. 18,1913.

to hold the same normally retracted Within the housing, means on the pintle for holding it at different points of adjustment in its arcuate movement, and means detachably engaging the pintle and adapted to be secured to such blind for the mounting of the same thereon.

In testimony whereof I aflix my signature 1n presence of two wltnesses.

ERASTUS C. BILLINGS.

WVitnesses:

-WM. A. DAVENPORT;

HARRY A.7VEYMOTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

